The singer has been shocked to find the use of the Nirvana frontman's image sitting on a cloud with the tagline "Dr Martens. Forever" is not illegal in Britain - but is keen to emphasise she has not given permission for the ad.

Her spokesperson tells The Sun, "She thinks it's outrageous a company is allowed to commercially gain from such a despicable use of her husband's picture.
Story continues below...

"It appears that in the UK what Dr Martens has done is allowed. Courtney did not, and would not, approve of such a use of Kurt's name and likeness."